What German aircraft designed by Seiegfried and Walter Günter at Heinkel Flugzeugwerke in 1934 was operated by Lehrgeschwader 1?
Heinkel He 111
-1
Section::::Abstract.
Lehrgeschwader 1
18748952
-1
Section::::Abstract.
Lehrgeschwader 1
18748952
-1
Section::::Abstract.
Heinkel He 111
174487